Benjamdv f



(No Model.)

B. F. SUTTON.

vSYRINGE TUBE.

No. 339,821. Patented Apr. 13, 1886.

UNITED STATES 'ATENT FFICE.

, BENJAMIN F. SUTTON, OF BROOKLYN, NEV YORK, ASSIGNOR TO HIMSELF,

RUSSEL PARKER, AND JAMES H. STEARNS, ALL OF SAME PLACE.

SYRING E-TUBE.

Ef-QECIFICATION forming. part of Letters Patent No. 339,821, dated April 13, 1886.

Application filed January 25, 1396. Sullfll No. 189,5!1'8. (N model.)

To all whom, it may concern: which will collapse or fold with the tube, and 50 Be it known that I, BENJAMIN F. SUTTON, which prevents the undue expansion of the of Brooklyn, in the county of Kings and State tube. of New York. have invented a new and use- In the accoinpanyingdrawings,Fignre1 repful Improvement in Syringe Tubes or Con resents a syringe having an expansible and duits, of which the following is a specification. collapsible o r folding discharge tube elnbody- 55 My invention relates, generally, to the dising my invention. Fig. 2 is a perspective charge tubes or conduits of syringes, and also view, partly in section. of a portion of such L to the bulbs which arecomprised insuchtubes, expansible and collapsible tube. Fig. 3 is a and which form a part of the conduit, and transverse section of the tube in its collapsed which may be considered as an enlarged porcondition. Fig. at is a corresponding section 60 tion of the tube. Theinvention is, however, l of the tube when expanded by pressure with- L more particularly intended for such syringein it. Fig. 5 represents a portion of circular tubes as are in their normal condition col or cylindric tube in which my invention is lapsed or in longitudinal folds, and which embodied. Fig. 6 is a transverse section of are expanded by the pressure produced in op such tube; and Fig. 7 is an exterior view of a 65 crating the syringe. Such collapsible tubes bulb or enlarged portion of a tube also cmare shown and described in my United States bodying my invention.

Letters Patent No. 319,937, dated June 9, Similar letters of reference designate corre- 1885, and their purpose is to provide foracouspending parts in all the figures.

tinuous or nearly continuous discharge, the Adesignatesthedischarge-tube ofa syringe, 7o surplus or excess of liquid which is contained having a bulb, B, whereby water may be dis- .in the tube when expanded being expelled by charged under pressure through the tube A,

the collapsible force of the tube when the and a suction-tube, O.

bulb is released and allowed to recover itself. The construction of the dischargetube is Such tubes or conduits operate mosteffeetively best represented in Figs. 2, 3, and 4. This when made of very thin and elastic indiatube is of such construction that'in itsnormal rubber; and the object of my invention is to condition it is collapsed or folded, as repreprovide in them a re-enforceinent by which sented in Fig. 3, so as to nearly or quite close go their undue expansion to such an extent as the passage throughit, and so that when liquid would beliableto producerupture will be preis forced through it under pressure it will vented. readily expand to such form as is shown in To this end my invention consists in an ex- Fig. 4, or to agrcater degree. When the bulb pansible tube or conduit having embedded in is operated, the tube will be expanded and wa- 35 it or incorporated between itsinner and outer ter will be discharged forcibly from the nozzle surfaces 2. spirally-wound re-enfbrcement of a, and when the bulb B is released from the thread or cord, the convolutions of which are pressure of the hand, so that it may recover widely separated or isolated from each other itself, the excess of water which is contained lengthwise of the tube or conduit, and by I in the expanded tube A will, by the collapsi- 40 which the undue expansion of the tube is prei ble force of the tube, be discharged in a nearly vented. continuous stream from the nozzle, as is de- The invention also consists in an expansible scribed in my aforesaid Letters Patent. tube which in its normal condition is collapsed The tube A, to best per-formits functions is or in longitudinal folds, and which has erumade of quite thin and elastic india-rubber,

45 bedded in it or incorporated between its inner and has embodied within it or incorporated and outersurfacesaspirally-wound re-enforcebetween its inner and outer surfaces a spiral 5 ment of thread or cord, the convolutions of winding or re-enforcenient, b, which is made which are separated or isolated from each of thread or cord, and which, by reason of its other lengthwise of the tube or conduit, and non-elastic nature, serves as a shield or guard to prevent the tube from being expanded to such an undue degree as would render it liable to rupture.

The tube A may be made of two thicknesses or plys of india-rubber, and after the cord or thread b is wound spirally upon the inner thickness or ply, the outer thickness or ply may be placed outside of the thread or cord and the tube afterward subjected to vulcanization. It will be observed that the convolutions of the spiral winding of the thread orcord 1) are separated considerably from each other, and hence this spiral re-enforcement will not interfere materially with the longitudinal expansion or extension of the tube which may take place when'in use. This spiral re enforcement b affords ample protection against the expansion of the tube at any point to such an extent as would endanger rupture and consequent leakage, and enables me to make the tube much thinner and more elastic than ordinary syringe-tubes, which qualities are highly desirable in a collapsible tube of the kind described.

In Figs. 5 and 6 I have represented a circular or cylindric tube, A*, having a spiral re-enforcernent, b, which may be of thread or cord, and which, as before described, is embedded in the tube or incorporated between two layers or plys of which it is formed. In

this tube the convolutions of-the spiral thread or cord are so far apart thatopportunity is afforded for the expansion or, bulging of the tube between such convolutions, and the spiral winding will prevent any expansion which would be dangerous to the tube.

In Fig. 7 I have represented a syringe-bulb, A, which may be considered as an enlarged portion of the tube, and it has aspirally-wonnd thread or cord, b, embodied in it or incorporated between its inner and outer surfaces. The bulb also may be made of two plys or thicknesses, between which the spiral winding of thread or cord b is applied before vulcanization, and in this bulb, as well as in the tube A*, the lateral expansion is confined to the spaces between the convolutions of the re-en forcement b, and hence any such degree of ex: pansion as would endanger the safety of the bulb is prevented.

In Figs. 5, 6, and7 I have representedthe thread or cord re-enforcement b by dotted lines, and have indicated its location by ribs. upon the exterior of the tube and bulb.

I am aware that india-rubber dilators for medical purposes have been provided with longitudinal inelastic cords or wires, which spiral, the convolutions of which are so far separated or isolated one from another lengthwise of the tube that a limited diametrical expansion can take place between the convw lutions, and thespiral cord or thread does not interfere with the lengthwise expansion or extension ofthe tube or conduit; I

What I claim as my invention, and desire to secure by Letters Patent, is-' r 1. An expansible tube or conduit having em I bedded in it or incorporated between its inner and outer surfaces a spirally-wound thread or cord, the convolutions of which are widely separated or isolated from each vother lengt-hwise of the tube or conduit, whereby the an due expansion of the tube or conduit is pre-, vented, substantially as herein described. I

2. An expansible tube which in its normal condition is collapsed or in longitudinal folds,

and which has embedded in it or incorporated 7 between its inner and outer surfaces-a spiral re-enforcement of thread or cord, the convolutions of which are separated or isolated from each other lengthwise of the tube and which. 1

will collapse or fold with the tube and prevent its undue expansion, substantially as herein described.

BENJAMIN F. SUTTON.

Vvitnesses:

FREDK. HAYNES, HENRY MoBRIDE. 

